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Function restriction
Travel Assist is only for support and does not absolve
you from your responsibility for driving the vehicle.
The function may be restricted or unavailable in the
following cases.
The field of view of the sensor is limited by a dirty
▶
screen or an obstacle or a preceding vehicle.
In the event of unfavourable weather conditions.
▶
When driving around a sharp bend.
▶
When driving on a steep road or in ruts.
▶
When the driving lane is too narrow.
▶
In addition to these limitations, please note ACC re-
strictions
» page
130.
WARNING
Danger of incorrect steering intervention!
Certain objects or markings on the road may be erro-
neously recognized as lane markings.
Always keep your hands on the steering wheel and
▶
be prepared to override the steering intervention.
Troubleshooting
Message regarding system unavailability
›
The problem solving instructions for Lane As-
sist
» page 132
and ACC
›
If the system is still not available, seek the help of a
specialist garage.
Lane change assist system Side Assist
Usage
Side Assist monitors the area both beside and behind
the vehicle.
The system uses optical signals in the exterior mirror
to alert the driver to vehicles that could be danger-
ous when changing lanes.
Functionality
The system warns of an approaching vehicle through
the illumination of the indicator light
or mirror cover on the vehicle side where the vehicle
is detected.
Driver assist systems ›
» page 131
are as follows.
in the exteri-
Lane change assist system Side Assist
Driving situations in which a system warning oc-
curs
Your vehicle is overtaken by vehicle
vehicle
approaches, the sooner the warning is giv-
A
en by the indicator light.
Vehicle
is overtaken by your vehicle at a speed
B
that is faster by max. 10 km/h. If the speed is higher
during the overtaking process, no warning will be
provided by the indicator light.
Indicator light
illuminates - There is another vehicle behind your
vehicle
flashing - There is another vehicle behind your ve-
hicle, and the turn signal on the same side is switch-
ed on
For vehicles with Lane Assist, the indicator light will
also flash if your vehicle crosses the lane markings in
the direction of the approaching vehicle. The system
will trigger a steering wheel vibration in this case.
For this, Lane Assist must be activated and the lane
marking between the vehicles must be detected.
Operating conditions
✓ The driving speed is higher than 15 km/h.
✓ No accessories are connected to the trailer sock-
et.
Function restriction
The system cannot detect lane width. For this rea-
son, it may, for example, draw attention to a vehicle
in a distant lane in the following cases.
Driving on a road with narrow lanes or on the lane
▶
edge.
Driving round bends.
▶
The system can draw attention to objects along the
road, such as high guard rails or noise barriers.
In the following cases, the system does not have to
issue a warning of another vehicle, or the warning
may be issued incorrectly.
Unfavourable weather conditions.
▶
133
. The faster
A
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